Paul Frenette, M.D., discusses the promise and risks of current stem cell treatments and explains how prospective patients can protect themselves from fraudulent therapies. Dr. Frenette is director of the Ruth A. and David S. Gottesman Institute for Stem Cell and Regenerative Medicine Research at Einstein. This edition of Einstein On, a research and medicine podcast, is hosted by Gordon Earle, associate dean for communications and public affairs. (September 19, 2012)